<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
    <title>JSP - Hello World</title>
</head>
<body>
<form method="post" action="/BOOK_war_exploded/Book">
    <h1 align="center">欢迎登录图书管理界面<br>
    <input type="submit" value="确认" name="action" align="center" ></h1>
</form>
</body>
</html>